stm32l1xx_tim.c

VS1003_MP3_SPI_SDHC_FAT32

  *         parameters in the TIM_OCInitStruct.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
  *         that contains the configuration information for the specified TIM 
  *         peripheral.
  * @retval None
  */
void TIM_OC3Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
  uint16_t tmpccmrx = 0, tmpccer = 0;
   
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx));
  assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
  assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
  assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));   

  /* Disable the Channel 2: Reset the CC2E Bit */
  TIMx->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC3E));
  
  /* Get the TIMx CCER register value */
  tmpccer = TIMx->CCER;
  
  /* Get the TIMx CCMR2 register value */
  tmpccmrx = TIMx->CCMR2;
    
  /* Reset the Output Compare Mode Bits */
  tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR2_OC3M));
  
  /* Select the Output Compare Mode */
  tmpccmrx |= TIM_OCInitStruct->TIM_OCMode;
  
  /* Reset the Output Polarity level */
  tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC3P));
  /* Set the Output Compare Polarity */
  tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OCPolarity << 8);
  
  /* Set the Output State */
  tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OutputState << 8);
  
  /* Set the Capture Compare Register value */
  TIMx->CCR3 = TIM_OCInitStruct->TIM_Pulse;
  
  /* Write to TIMx CCMR2 */
  TIMx->CCMR2 = tmpccmrx;
  
  /* Write to TIMx CCER */
  TIMx->CCER = tmpccer;
}

/**
  * @brief  Initializes the TIMx Channel4 according to the specified
  *         parameters in the TIM_OCInitStruct.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
  *         that contains the configuration information for the specified TIM 
  *         peripheral.
  * @retval None
  */
void TIM_OC4Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
  uint16_t tmpccmrx = 0, tmpccer = 0;
   
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx)); 
  assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
  assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
  assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));   

  /* Disable the Channel 2: Reset the CC4E Bit */
  TIMx->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC4E));
  
  /* Get the TIMx CCER register value */
  tmpccer = TIMx->CCER;
  
  /* Get the TIMx CCMR2 register value */
  tmpccmrx = TIMx->CCMR2;
    
  /* Reset the Output Compare Mode Bits */
  tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR2_OC4M));
  
  /* Select the Output Compare Mode */
  tmpccmrx |= (uint16_t)(TIM_OCInitStruct->TIM_OCMode << 8);
  
  /* Reset the Output Polarity level */
  tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC4P));
  /* Set the Output Compare Polarity */
  tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OCPolarity << 12);
  
  /* Set the Output State */
  tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OutputState << 12);
  
  /* Set the Capture Compare Register value */
  TIMx->CCR4 = TIM_OCInitStruct->TIM_Pulse;
  
  /* Write to TIMx CCMR2 */  
  TIMx->CCMR2 = tmpccmrx;
  
  /* Write to TIMx CCER */
  TIMx->CCER = tmpccer;
}

/**
  * @brief  Fills each TIM_OCInitStruct member with its default value.
  * @param  TIM_OCInitStruct : pointer to a TIM_OCInitTypeDef structure which will
  *         be initialized.
  * @retval None
  */
void TIM_OCStructInit(TIM_OCInitTypeDef* TIM_OCInitStruct)
{
  /* Set the default configuration */
  TIM_OCInitStruct->TIM_OCMode = TIM_OCMode_Timing;
  TIM_OCInitStruct->TIM_OutputState = TIM_OutputState_Disable;
  TIM_OCInitStruct->TIM_Pulse = 0x0000;
  TIM_OCInitStruct->TIM_OCPolarity = TIM_OCPolarity_High;
}

/**
  * @brief  Selects the TIM Output Compare Mode.
  * @note   This function disables the selected channel before changing the Output
  *         Compare Mode.
  *         User has to enable this channel using TIM_CCxCmd and TIM_CCxNCmd functions.
  * @param  TIMx: where x can be 2, 3, 4, 5, 9, 10 or 11 to select the TIM peripheral.
  * @param  TIM_Channel: specifies the TIM Channel.
  *   This parameter can be one of the following values:
  *     @arg TIM_Channel_1: TIM Channel 1.
  *     @arg TIM_Channel_2: TIM Channel 2.
  *     @arg TIM_Channel_3: TIM Channel 3.
  *     @arg TIM_Channel_4: TIM Channel 4.
  * @param  TIM_OCMode: specifies the TIM Output Compare Mode.
  *   This parameter can be one of the following values:
  *     @arg TIM_OCMode_Timing: TIM Output Compare Timing mode.
  *     @arg TIM_OCMode_Active: TIM Output Compare Active mode.
  *     @arg TIM_OCMode_Inactive: TIM Output Compare Inactive mode.
  *     @arg TIM_OCMode_Toggle: TIM Output Compare Toggle mode.
  *     @arg TIM_OCMode_PWM1: TIM Output Compare PWM1 mode.
  *     @arg TIM_OCMode_PWM2: TIM Output Compare PWM2 mode.
  *     @arg TIM_ForcedAction_Active: TIM Forced Action Active mode.
  *     @arg TIM_ForcedAction_InActive: TIM Forced Action Inactive mode.
  * @retval None
  */
void TIM_SelectOCxM(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_OCMode)
{
  uint32_t tmp = 0;
  uint16_t tmp1 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_LIST1_PERIPH(TIMx));  
  assert_param(IS_TIM_OCM(TIM_OCMode));
  
  tmp = (uint32_t) TIMx;
  tmp += CCMR_OFFSET;

  tmp1 = CCER_CCE_SET << (uint16_t)TIM_Channel;

  /* Disable the Channel: Reset the CCxE Bit */
  TIMx->CCER &= (uint16_t) ~tmp1;

  if((TIM_Channel == TIM_Channel_1) ||(TIM_Channel == TIM_Channel_3))
  {
    tmp += (TIM_Channel>>1);

    /* Reset the OCxM bits in the CCMRx register */
    *(__IO uint32_t *) tmp &= (uint32_t)~((uint32_t)TIM_CCMR1_OC1M);
   
    /* Configure the OCxM bits in the CCMRx register */
    *(__IO uint32_t *) tmp |= TIM_OCMode;
  }
  else
  {
    tmp += (uint16_t)(TIM_Channel - (uint16_t)4)>> (uint16_t)1;

    /* Reset the OCxM bits in the CCMRx register */
    *(__IO uint32_t *) tmp &= (uint32_t)~((uint32_t)TIM_CCMR1_OC2M);
    
    /* Configure the OCxM bits in the CCMRx register */
    *(__IO uint32_t *) tmp |= (uint16_t)(TIM_OCMode << 8);
  }
}

/**
  * @brief  Sets the TIMx Capture Compare1 Register value
  * @param  TIMx: where x can be 2, 3, 4, 5, 9, 10 or 11 to select the TIM peripheral.
  * @param  Compare1: specifies the Capture Compare1 register new value.
  * @retval None
  */
void TIM_SetCompare1(TIM_TypeDef* TIMx, uint32_t Compare1)
{
  /* Check the parameters */
  assert_param(IS_TIM_LIST1_PERIPH(TIMx));
  
  /* Set the Capture Compare1 Register value */
  TIMx->CCR1 = Compare1;
}

/**
  * @brief  Sets the TIMx Capture Compare2 Register value.
  * @param  TIMx: where x can be 2, 3, 4, 5 or 9 to select the TIM peripheral.
  * @param  Compare2: specifies the Capture Compare2 register new value.
  * @retval None
  */
void TIM_SetCompare2(TIM_TypeDef* TIMx, uint32_t Compare2)
{
  /* Check the parameters */
  assert_param(IS_TIM_LIST2_PERIPH(TIMx));
  
  /* Set the Capture Compare2 Register value */
  TIMx->CCR2 = Compare2;
}

/**
  * @brief  Sets the TIMx Capture Compare3 Register value.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  Compare3: specifies the Capture Compare3 register new value.
  * @retval None
  */
void TIM_SetCompare3(TIM_TypeDef* TIMx, uint32_t Compare3)
{
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx));
  
  /* Set the Capture Compare3 Register value */
  TIMx->CCR3 = Compare3;
}

/**
  * @brief  Sets the TIMx Capture Compare4 Register value.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  Compare4: specifies the Capture Compare4 register new value.
  * @retval None
  */
void TIM_SetCompare4(TIM_TypeDef* TIMx, uint32_t Compare4)
{
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx));
  
  /* Set the Capture Compare4 Register value */
  TIMx->CCR4 = Compare4;
}

/**
  * @brief  Forces the TIMx output 1 waveform to active or inactive level.
  * @param  TIMx: where x can be 2, 3, 4, 5, 9, 10 or 11 to select the TIM peripheral.
  * @param  TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
  *   This parameter can be one of the following values:
  *     @arg TIM_ForcedAction_Active: Force active level on OC1REF.
  *     @arg TIM_ForcedAction_InActive: Force inactive level on OC1REF.
  * @retval None
  */
void TIM_ForcedOC1Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
  uint16_t tmpccmr1 = 0;
  /* Check the parameters */
  assert_param(IS_TIM_LIST1_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
  tmpccmr1 = TIMx->CCMR1;
  /* Reset the OC1M Bits */
  tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC1M);
  /* Configure The Forced output Mode */
  tmpccmr1 |= TIM_ForcedAction;
  /* Write to TIMx CCMR1 register */
  TIMx->CCMR1 = tmpccmr1;
}
 
/**
  * @brief  Forces the TIMx output 2 waveform to active or inactive level.
  * @param  TIMx: where x can be 2, 3, 4, 5 or 9 to select the TIM 
  *   peripheral.
  * @param  TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
  *   This parameter can be one of the following values:
  *     @arg TIM_ForcedAction_Active: Force active level on OC2REF.
  *     @arg TIM_ForcedAction_InActive: Force inactive level on OC2REF.
  * @retval None
  */
void TIM_ForcedOC2Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
  uint16_t tmpccmr1 = 0;
  
  /* Check the parameters */
  assert_param(IS_TIM_LIST2_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
  
  tmpccmr1 = TIMx->CCMR1;
  /* Reset the OC2M Bits */
  tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC2M);
  /* Configure The Forced output Mode */
  tmpccmr1 |= (uint16_t)(TIM_ForcedAction << 8);
  /* Write to TIMx CCMR1 register */
  TIMx->CCMR1 = tmpccmr1;
}

/**
  * @brief  Forces the TIMx output 3 waveform to active or inactive level.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
  *   This parameter can be one of the following values:
  *     @arg TIM_ForcedAction_Active: Force active level on OC3REF.
  *     @arg TIM_ForcedAction_InActive: Force inactive level on OC3REF.
  * @retval None
  */
void TIM_ForcedOC3Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
  uint16_t tmpccmr2 = 0;
  
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
  
  tmpccmr2 = TIMx->CCMR2;
  /* Reset the OC1M Bits */
  tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC3M);
  /* Configure The Forced output Mode */
  tmpccmr2 |= TIM_ForcedAction;
  /* Write to TIMx CCMR2 register */
  TIMx->CCMR2 = tmpccmr2;
}

/**
  * @brief  Forces the TIMx output 4 waveform to active or inactive level.
  * @param  TIMx: where x can be 2, 3, 4 or 5 to select the TIM peripheral.
  * @param  TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
  *   This parameter can be one of the following values:
  *     @arg TIM_ForcedAction_Active: Force active level on OC4REF.
  *     @arg TIM_ForcedAction_InActive: Force inactive level on OC4REF.
  * @retval None
  */
void TIM_ForcedOC4Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
  uint16_t tmpccmr2 = 0;
  /* Check the parameters */
  assert_param(IS_TIM_LIST3_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
  
  tmpccmr2 = TIMx->CCMR2;
  /* Reset the OC2M Bits */
  tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC4M);
  /* Configure The Forced output Mode */
  tmpccmr2 |= (uint16_t)(TIM_ForcedAction << 8);
  /* Write to TIMx CCMR2 register */
  TIMx->CCMR2 = tmpccmr2;
}

/**
  * @brief  Enables or disables the TIMx peripheral Preload register on CCR1.
  * @param  TIMx: where x can be 2, 3, 4, 5, 9, 10 or 11 to select the TIM peripheral.
  * @param  TIM_OCPreload: new state of the TIMx peripheral Preload register.
  *   This parameter can be one of the following values:
  *     @arg TIM_OCPreload_Enable: Enable TIM output compare Preload
  *     @arg TIM_OCPreload_Disable: Disable TIM output compare Preload
  * @retval None
  */
void TIM_OC1PreloadConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPreload)
{